Use cosmic-config for dynamic workspace settings

`WorkspaceAmount`, `WorkspaceMode`, and `WorkspaceLayout` can all be
changed dynamically now.

cosmic-comp-config/src/lib.rs

@@ -3,6 +3,7 @@
 use serde::{Deserialize, Serialize};
 
 pub mod input;
+pub mod workspace;
 
 #[derive(Debug, Clone, Deserialize, Serialize)]
 pub struct XkbConfig {

cosmic-comp-config/src/workspace.rs

@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: GPL-3.0-only
+
+use serde::{Deserialize, Serialize};
+
+fn default_workspace_layout() -> WorkspaceLayout {
+    WorkspaceLayout::Vertical
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct WorkspaceConfig {
+    pub workspace_mode: WorkspaceMode,
+    pub workspace_amount: WorkspaceAmount,
+    #[serde(default = "default_workspace_layout")]
+    pub workspace_layout: WorkspaceLayout,
+}
+
+impl Default for WorkspaceConfig {
+    fn default() -> Self {
+        Self {
+            workspace_mode: WorkspaceMode::OutputBound,
+            workspace_amount: WorkspaceAmount::Dynamic,
+            workspace_layout: WorkspaceLayout::Vertical,
+        }
+    }
+}
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
+pub enum WorkspaceAmount {
+    Dynamic,
+    Static(u8),
+}
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
+pub enum WorkspaceMode {
+    OutputBound,
+    Global,
+}
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
+pub enum WorkspaceLayout {
+    Vertical,
+    Horizontal,
+}